Pressure-regulating valve.



T. PETERS'. PRESSURE REGULATINGVALVE. APPLICATION FILED IVI/IY 20. 1916.

Patented June 26, NIR

citizen of the United diaphragm-actuated `side of the valve *i1 ss .WNib.

Tnnononn PETERS, or FERDINAND, INDIANA,

ASSIGNOR TOYTHE PET-SON PUIVIP COM- PANY, A CORPORATION AOF INDIANA.

rnnssUnE-nneULnrINdVALVE.

To all whom it may concern:

Be it known that I, THEoDoRE PETERS, a States7 residing atFerdinand,lndiana, Vhave invented a certain new and useful 'Improvementin Pressure-Regulating Valves, of which the following is a full, clear,and eXact descripenable others skilled in tion, such as will the art towhich itappertains to make and use the same.

This invention relates 'to pressure-regu lating valves of the valve forcontrolling or regulating the pressure of the'medium passing through thevalve. l

The main object of my invention is to providey a pressure-regulatingvalve in which the desired pressure on the'discharge can be, accuratelygaged and 'controlled in a novel manner.

Another object .is 'to provide a valve of the type referred to in whichthe gage for indicatingthe pressure in the discharge side of the Vvalveis-an integral part' of the device.

Another object is to .provi'dea :valve of the character described 1inwhich the gage .can be calibrated by an. unskilled erson. Stillanother-.object is to'provi` e' a pressure-regulating valve in which,under certain conditions of service,

` isyrelieved from undue'pressure on one side thereof, thus prolongingits life and eliminating the liability of stretching sai'ddia- A furtherobject isto provide' a pressure" 'regulating valve in which -the valvethatv constructed that its controls the inlet is so operation is notaii'ectedby the'direct sure of the incoming medium thereon.

A still further object is to provide a valve pres- ,"of the typereferred to. which comprises l Slightly vvquickly assembled andwhichcan' be few simple parts which can'be easily and pro- duced at a lowcost ofmanufacture. Other objects and. desirablefeatures of my inven,hj'tion will be' hereinafter pointed out.

i Figure l ofthe drawings is a -vertical'sec. lfftional view of apressure-regulating valve constructed accordancetion; and

Figa 2 is a similar view,v

modified form of' my with my invenf illustrating- *la invention.'

i Brieiy stated,-my invention consists in a Specification of LettersPatent.

type which comprise atively high pressure,

4 lar pipeconnected to the dia hra P gm tom wall 2 of the communicationand a plurality chamber through l Patented' JI une 26, 191 "f.

Application led May 20, 1916. Serial No. 98,931. f

pressure-regulating valve that is 'adapted to be arranged in a pipe lineleading from a supply of. gas lor liquid underV pressure,

means being provided in said valve fork accontrolling or mainof themedium from the casting B, said chamberbeing 4formed by a cup-shapedcasting .that is connected by suitable fastening devices: 1, shown indotted lines in' Fig. 1, to'the`castingB, the bottom wall of saidchamber being formed by a floor or partition 2 that separates thechamber from the casting B, and the upper wall being formed by adiaphragm the valve at any de-l,l pipe line.

Eofy

rubber or other suitable flexible material.

The diaphragm E carries .a valvelstem that extends through an chamber D,disk 4 vis arranged on the lower stem and adapted to coperate seat 5 toVclose a anda valve end of said between the pipe and the chamber D,saidport being formed by. an

enlargement of a portion of theopening in p passes of branching lducts6n that the wall 2 through which the stem 3 connect said enlargedportion of the opening with the interior of said chamber. 'i port 7establishes communication between thechamber D-and the discharge pipe. Cfor the egress of the fluid that the ports 6 yand 6a. -4 The diaphragm Eis securely held in operative Y-position between flange 8 at the upperedge oi the chamber and a cap piece F,` by means of suitablefastening-devices 9, said cap piece serving to support two or moreuprights 10 which carryfa cross piece Gry at their upper ends. he crosspiece G is provided with an elonopening in the botl enters said with avalve I portl 6 which establishes' an annular gated, vertically-disposedboss 11 having an v"internally screw-threaded bore for receiv- .ing'athreadedmember 12, said member having its lower 'end substantiallyconical and engaging a correspondingly shaped seat in a spring cap orseat 13. The diaphragm E .is provided with a spring seat 14 that is,secured thereto by means of a threadedextension of the valve stem 3,

and a coiled expansion spring 15 is interposed between. said sprin seatand the spring cap 13 previously re erred to.

The valve stem 3 is provided with a flange or collar'16 that is arrangedunder vthe diavertically forv the purpose of compressing :brate tle gagethe spring 15 more or less so as to vary the tension or pressure whichsaid spring exerts on the diaphragm E, and-said member is provided withan odset or-crank shaped ,portion that forms an operating handle 18.

In order to indicate to the operator the pressure of the medium thatpasses out wardly from the valve through the discharge pipe-C, I haveprovided a gage or scale 19 that cooperates -with a resilient finger 20on the olset portion of the adjustable member 12, said vscale preferablybeing formed on a sleeve 21 that surrounds the shank of the mel ber 12,said sleeve being provided with a vertical groove 22 arranged' adjacentto the scale 19, into which the finger 20 is adapted to snap at the endof each revolution of the member 12,'thus holding 'said member in anydesired adjusted position. .In order'to accurately cali- 19, the crosspiece justably mounted on the uprights 10, and in the form of myinvention herein shown, the

. upper ends of the uprights are threaded to receive adjusting devicesor 'nuts 10, which can be adjusted vertically, tension of the springposition of the member 12, and thus calibrate the gage 19 so that thereadings thereon will correspond exactly with the pressure n .in thedischarge side of the valve.

In operation, assumingthe pipe .A connected to a' source of supply ounder comparativelyl high pressure, for 1nstance, air under pressure ofpounds perl square inch, vice 12 is rotated cross piece G is adjustable-'pensive pressure gage hated.

so as to-vary the4 15, regardless ofthe 'per side ofthe pist to be afluid; the valve disk seated againstthe tension of the 'spring' 15, ldnot -be great. enough' toj high pressure maintained -one hundred; theadjustable rdeoperate against the until the linger 20 theref desired tobe maintained in the discharge pipe C. When the valve is dead; that is,when no fluid is passing through the same, due to lack of pressure inthe supply pipe, the diaphragm and its carried valve will be in theposition shown in Fig. 1 of the drawings. As soon as air is admittedthrough the pipe A, it will pass around the valve disk 4 into thechamber D, through the ports 6 vand 6a, and then outwardly through thedischarge port T into the pipe C. AThis will continue until the pressurein the chamber -D builds up to a point higher than fortyl pounds to thesquare inch (the desired pressure represented bythe gage) when thispressure in the chamber D will force the diaphragm upwardly against thetension of the spring, thus raising the valve- D, the forty poundspressure inthe chamber 95 l D, being sulicient to hold said valve disk 4seated. As soon',.however, as air is drawn 0H from the discharge -pipe Cthe pressure' therein and` in the chamber D will be reduced and thespring 15 will operate against the diaphragm Eto force the valvedisk 4away from its seat and. permit-suliicient air that is being used fromthe 90 v C,`the valve disk 4 will be to enter the chamber D from thepipe A to I build up and maintain the desired pressure. By simplyrotating the so as to adjust the member 12 vertically, any desiredlpressure may be maintained in -*the discharge pipe C, and by v`combiningthe simple gage 19 with the handle 18, an. eX-

In Fig. 2 I have illustrated an embodiment of my invention whichis'especially adapted for use with a liquid under pressuresuch as water,tween this construction and that previously described being that thevalve disk 4a is provided with a downwardly-extending shank 23 whichcarries a a cylinder 25 formed in the casting B. The object of thepiston 24 is to counteract the pressure of the incoming water on theunder side of the valve disk 49,

opposing area were present,

its 'force' continually on, the undersideof 4% and-.hold the valve diskwhichv tension wo operating handle 18 v in the pipe C is elimiwhich, ifnov such as the upon 24, would act withall the chief distinctionbepiston 24 that operates in i A pressure-regulating valve of the Corrdicate the pressure which said spring applies struction above describedis very efficient 1n to said diaphragm.

operation and simple in construction, being 2. In a pressure-regulatingvalve, a casing composed of a few rugged parts that can be `providedwith inlet and discharge ports, a 30 i 5 easily and quickly assembledand which can flexible diaphragm which controls the pasbe produced at alow cost of manufacture. sage of a medium under pressure from saidHaving thus described my invention, what inlet v'to said discharge port,a plurality of I claim, and desire to secure by Letters Patuprights onsaid casing, a cross piece mountent, is:l ed on the upper ends of saiduprights, a ro- 35 l. In a pressure-regulating valve, a casing tatablemember threaded into said cross l provided With inlet and dischargeports, a piece, a stationary sleeve on said cross piece flexiblediaphragm Which controls the pasthrough which said rotatable memberpasses, sage of a medium under pressure fromsaid a vertically-disposedgroove in the outer surinlet to said discharge port, a plurality of faceof sald sleeve, a scale on the sleeve ad 40 uprights on said casing, across piece mountjacent said groove, a spring cap arranged at ed on Saiduprights, a rotatable member the loWer end of said member, a coiled eX-threaded into said cross piece, a spring cap pansion spring arrangedbetween said cap arranged at the lower end of saidmember, and saiddiaphragm, a resilient'linger on' a coiled expansion 'spring arrangedbetween said rotatable member Whose free end travels 45V- f said cap andsaid diaphragm, a stationary over the outer surface ofv said sleeve andelement on said cross piece through which ,snaps-into the groove thereinwhen said said 4rotatable member passes, said element member is given' acomplete turn, and means being provided on its outer Surface With a foradjusting said cross'piece relatively to scale, and a device on saidrotatable member said uprlghts; for the purpose described.

that coperates with said stationary element l to lock said rotatablemember and also to in- THEODORE PETERS.

